Amazon S3
Amazon S3 is AWS object storage for storing, retrieving, securing, and managing data at scale through a web console, APIs, SDKs, and…
$0 with eligible credits or allowances / variesList of API Software | Last updated: October 13, 2026
This page lists the 384 tools in the TechZella directory that are classified under API, a platform in our taxonomy. Every profile summarises what the product does, who it suits, what it costs, and where it falls short, based on documented vendor and independent sources rather than hands-on testing. Examples in this group include 1Password, Canva, Descartes Systems Group, Grammarly Business, Magento (Adobe Commerce), Otter.ai, Scribie and Trellix Endpoint Security; the list is alphabetical and does not imply a ranking. Across these tools the industries most often documented are Education, Professional Services, Financial Services, Healthcare. The most common documented use cases are Workflow automation, Sales pipeline management, Hybrid events, Team collaboration. Tools here are most often also filed under CRM Software, Webinar Software, Virtual Event Software, Cloud Storage. To compare options, open each profile and read the Decision Snapshot, the pricing and total cost sections, and the Gotchas, then check the alternatives listed for the products you are considering. Features, pricing and availability change, so confirm current details with each vendor before you decide.
This page lists the 384 tools in the TechZella directory that are classified under API, a platform in our taxonomy. Every profile summarises what the product does, who it suits, what it costs, and where it falls short, based on documented vendor and independent sources rather than hands-on testing. Examples in this group include 1Password, Canva, Descartes Systems Group, Grammarly Business, Magento (Adobe Commerce), Otter.ai, Scribie and Trellix Endpoint Security; the list is alphabetical and does not imply a ranking. Across these tools the industries most often documented are Education, Professional Services, Financial Services, Healthcare. The most common documented use cases are Workflow automation, Sales pipeline management, Hybrid events, Team collaboration. Tools here are most often also filed under CRM Software, Webinar Software, Virtual Event Software, Cloud Storage. To compare options, open each profile and read the Decision Snapshot, the pricing and total cost sections, and the Gotchas, then check the alternatives listed for the products you are considering. Features, pricing and availability change, so confirm current details with each vendor before you decide.
These links use TechZella's existing product-to-taxonomy relationships. They are navigation aids, not independent endorsements.
Browse the current directory listings and open individual profiles for detailed feature, pricing and evidence information.
| # | Software / Tool | Best For | TechZella Score | User Rating | Pricing |
|---|---|---|---|---|---|
| 1 | Concrete CMS | Concrete CMS is an open-source, PHP-based content management system for websites and… | 8.2/10 | — | $0 / $4.99 |
| 2 | DatoCMS | DatoCMS is a cloud-based headless content management system with GraphQL content delivery,… | 8.2/10 | — | $0 / From €149 |
| 3 | Kit (formerly ConvertKit) | Kit is a web-based email marketing platform for creators, with newsletters, audience-growth… | 8.1/10 | — | $0 / $39 per month; about $33 per… |
| 4 | beehiiv | beehiiv combines newsletter publishing, email marketing, audience-growth tools, and monetization features with… | 8.0/10 | — | $0 / $49 |
| 5 | Flodesk | Flodesk is a web-based email marketing platform for designing and sending campaigns,… | 8.0/10 | — | $0 / $19 annually; $25 monthly |
| 6 | Kirby | Kirby is a self-hosted, file-based CMS with a customizable browser Panel, PHP… | 7.9/10 | — | €99 / €349 |
| 7 | Mailjet | Mailjet is a web-based email marketing and delivery platform with campaign tools,… | 7.9/10 | — | $0 / $9 |
| 8 | Sendlane | Sendlane is a web-based email marketing platform with campaign tools, behavioral automations,… | 7.8/10 | — | $100 / $0 |
| 9 | Zesty.io | Zesty.io is a cloud CMS for creating, managing, and publishing structured content… | 7.7/10 | — | $0 / $475 |
| 10 | Substack | Substack combines email newsletter publishing, a hosted publication site, subscriber management, and… | 7.6/10 | — | $0 / 10% of subscription revenue plus Stripe… |
Amazon S3 is AWS object storage for storing, retrieving, securing, and managing data at scale through a web console, APIs, SDKs, and…
$0 with eligible credits or allowances / variesSecure file sharing and document workflow software for organizations exchanging sensitive files with employees, clients and external partners.
$16.50 annually; $18.15 monthly / per user/monthEgnyte is a cloud content platform for secure collaboration, document management, AI-assisted content work, governance, and data security.
$22 per user / month, billed annuallyInternxt is a privacy-focused cloud storage suite with zero-knowledge encryption, file backup, sharing, mobile apps, desktop apps and S3-compatible storage.
u20ac0 / monthFilen is a German cloud storage service with client-side zero-knowledge encryption, file synchronization, sharing, encrypted notes, chats, and developer tools.
u20ac0 / monthSmash is a large-file transfer service with web, mobile, macOS, Outlook, and API access. It supports temporary links, file previews, branding, and…
$0 / monthWeTransfer is a file-transfer platform for sending large files through browser links, email transfers, mobile apps, and managed workspaces.
$0 / month
Tresorit is an end-to-end encrypted cloud platform for storing, syncing, sharing, and signing confidential files.
$0 / monthownCloud is open-source software for secure file storage, synchronization, sharing and content collaboration across self-hosted and hosted deployments.
Free / No subscriptionNextcloud is an open-source content collaboration platform for self-hosted file storage, synchronization, document editing, communication and groupware.
$0 / one-time software license